This Great Cake Contest entry was submitted by jjdg7 from Berlin, New Hampshire: Birthday cake for grandson his birthday is Halloween
Bake cakes in bundt pan according to box directions. If you use 2, cut just enough off the bottom one so it will sit straight. invert one of them onto the other, with icing to hold them together. add food coloring to make it orange, and save a little uncolored for the "stem." The stem is made from an ice cream cone that is iced green.
Once you have it assembled and iced, cut a circle out for the mouth, cover that with either fondant or fruit roll-ups. Shape it into the mouth and make it look like a tongue sticking out. For the "puke" I used gummy bugs, worms, candy corn, and the crumbs from where I cut out the mouth. I made the eyes using some "googly" eyes I found in the Halloween section of Wal-mart, and I used colored icing that you get in tubes in the store for the outline of the eyes . I know as you are "playing' with it you will come up with some of your own ideas